The new junior brother set up quite a spectacle, with clouds and a Lotus magical treasure protecting his body. He might genuinely be trying to defend against Li Fan's plasma cannon, or he might be deliberately using himself as bait to draw fire, trying to lure Li Fan out.
In fact, taking advantage of the fact that the enemy had not yet found him, he could have taken the initiative to snipe first, and then escape the deadly siege. However, repeating this would inevitably reveal that Li Fan had a way to freely enter and leave the deadly siege without restrictions.
And the main problem is that the power of the plasma cannon might not be sufficient. Not that it's insufficient, but rather, the plasma can not only break through the Daoist bodies of transforming god cultivators but also go right through!